Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method  

基于LES方法圆柱绕流三维数值模拟(英文)

作　　者：陈海龙[1] 戴绍士[1] 李佳[1] 姚熊亮[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《Journal of Marine Science and Application》2009年第2期110-116,共7页船舶与海洋工程学报（英文版）

摘　　要：The hydrodynamic characteristics of a rigid, single, circular cylinder in a three dimensional, incompressible, uniform cross flow were calculated using the large-eddy simulation method of CFX5. Solutions to the three dimensional N-S equations were obtained by the finite volume method. The focus of this numerical simulation was to research the characteristics of pressure distribution （drag and litt forces） and vortex tubes at high Reynolds numbers. The results of the calculations showed that the forces at every section in the spanwise direction of the cylinder were symmetrical about the middle section and smaller than the forces calculated in two dimensional cases. Moreover, the flow around the cylinder obviously presents three dimensional characteristics.

关 键 词：LES method three-dimensional flow past circular cylinder hydrodynamic characteristics 

分 类 号：O357.1[理学—流体力学]